- [NEW] beat() function

lua.cpp

@@ -507,6 +507,12 @@ extern "C" {
         return 1;
     }
 
+    static int cpp_beat(lua_State *L) {
+        int16_t beats = luaL_optnumber(L, 1, -1);
+        lua_pushboolean(L, beat(beats));
+        return 1;
+    }
+    
     static int cpp_abs(lua_State *L) {
         float x = luaL_checknumber(L, 1);
         lua_pushnumber(L, abs(x));
@@ -842,6 +848,7 @@ void push_lua_funcs() {
     lua_pushcfunction(L,cpp_mbtnp);      lua_setglobal(L, "mbtnp");
 
     lua_pushcfunction(L,cpp_time);      lua_setglobal(L, "time");
+    lua_pushcfunction(L,cpp_beat);      lua_setglobal(L, "beat");
     lua_pushcfunction(L,cpp_abs);       lua_setglobal(L, "abs");
     lua_pushcfunction(L,cpp_ceil);      lua_setglobal(L, "ceil");
     lua_pushcfunction(L,cpp_flr);       lua_setglobal(L, "flr");

mini.cpp

@@ -88,6 +88,8 @@ int8_t pad_just_pressed = SDL_CONTROLLER_BUTTON_INVALID;
 Mix_Music *music = NULL;
 Mix_Chunk *sounds[MAX_SOUNDS];
 
+int16_t beats, num_beats = 0;
+
 char* get_value_from_line(char* line) {
     char* equal_character = strchr(line, '=');
     if (equal_character == NULL) return NULL;
@@ -334,6 +336,8 @@ int main(int argc,char*argv[]){
                 } else {
                     loop();
                 }
+                if (beats==0)beats=num_beats;
+                if (beats>0)beats--;
                 key_just_pressed = 0;
                 mouse_just_pressed = 0;
                 pad_just_pressed = SDL_CONTROLLER_BUTTON_INVALID;
@@ -943,6 +947,15 @@ float time() {
     return float(SDL_GetTicks())/1000.0f;
 }
 
+bool beat(int16_t i) {
+    if (i<0) {
+        return beats==0;
+    } else {
+        beats=num_beats=i;
+        return false;
+    }
+}
+
 /*float abs(float x) {
     return SDL_fabsf(x);
 }*/

mini.h

@@ -215,6 +215,7 @@ bool mbtn(uint8_t i);
 bool mbtnp(uint8_t i);
 
 float time();
+bool beat(int16_t i);
 
 //float abs(float x);